The quality of this chemical structure is disputed.

The dispute is about: Wrong type of omega in the peptide angle. The different conformational possibilities of a group are not very visually distinct from constant structural details. For example, would be clearer if the "alternate" position of the amide atoms were much lighter. (Please discuss the issue on this file's talkpage)

See also Wikipedia:Manual of Style/Chemistry/Structure drawing

Usage: {{low quality chem|reason}}

If there is a better version of the image available, please link it (e.g. using {{Superseded}} or {{Vector version available}}).